[CARBONDATA-595] Drop Table for carbon throws NPE with HDFS lock type.

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 0.2.0-incubating
• Fix Version/s: 1.0.0-incubating
• Assignee: Ravindra Pesala
• Reporter: Babulal
• Created: 04/Jan/17 15:17
• Updated: 09/Jan/17 10:41
• Resolved: 09/Jan/17 10:41

Description

Start version :- 1.6.2
Start carbon thrift server
set HDFS LOCK Type

drop table from beeline
0: jdbc:hive2://hacluster> drop table oscon_new_1;
Error: java.lang.NullPointerException (state=,code=0)

Error in thrftserver

17/01/04 20:40:08 AUDIT DropTableCommand: [hadoop-master][anonymous][Thread-182]Deleted table [oscon_new_1] under database [default]
17/01/04 20:40:08 ERROR AbstractDFSCarbonFile: pool-25-thread-12 Exception occured:File does not exist: hdfs://hacluster/opt/CarbonStore/default/oscon_new_1/droptable.lock
17/01/04 20:40:08 ERROR SparkExecuteStatementOperation: Error executing query, currentState RUNNING,
java.lang.NullPointerException
at org.apache.carbondata.core.datastorage.store.filesystem.AbstractDFSCarbonFile.delete(AbstractDFSCarbonFile.java:128)
at org.apache.carbondata.lcm.locks.HdfsFileLock.unlock(HdfsFileLock.java:110)
at org.apache.spark.sql.execution.command.DropTableCommand.run(carbonTableSchema.scala:613)
at org.apache.spark.sql.execution.ExecutedCommand.sideEffectResult$lzycompute(commands.scala:58)
at org.apache.spark.sql.execution.ExecutedCommand.sideEffectResult(commands.scala:56)

Note :- lock file and data are deleted successfully but in beeline it throws ERROR message instead of success.

Issue Links

• links to: GitHub Pull Request #502